Finding the Fourth Proportional to 285,507.84, 393,984.36 and 158,175.84
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Solution
The fourth proportional to 285,507.84, 393,984.36 and 158,175.84 is: 218,273.54
Step by Step Solution
- Step 1: Write the proportion equation
285,507.84 : 393,984.36 = 158,175.84 : x - Step 2: Convert to fraction form
285,507.84/393,984.36 = 158,175.84/x - Step 3: Cross multiply
285,507.84x = 393,984.36 × 158,175.84 - Step 4: Simplify right side
285,507.84x = 62,318,807,089.86 - Step 5: Solve for x
x = 62,318,807,089.86/285,507.84 - Step 6: Final answer
x = 218,273.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.